diff --git a/composer.json b/composer.json
index 9de98aa..ca6199e 100644
--- a/composer.json
+++ b/composer.json
@@ -15,9 +15,9 @@
         }
     ],
     "require": {
-        "atk4/data": "dev-develop",
-        "atk4/schema": "dev-develop",
-        "php": ">=5.6.0"
+        "php": ">=5.6.0",
+        "atk4/schema": "^1.1",
+        "atk4/data": "^1.4"
     },
     "suggest": {
         "atk4/ui": "Provides you with extra Views to display history",